Tesla Inc. (NASDAQ:TSLA) CEO Elon Musk on Saturday reflected on the company’s stock jump over the past week, terming it a “rollercoaster.” What Happened: “The stock market is wild, sort of rollercoaster. I think Warren Buffett has a lot of good sayings. One is, ‘Having a publicly traded company is like having someone stand outside your house and yell house prices all day,’ and it’s still the same house,” Musk said at a town hall in Lancaster, Pennsylvania, where he was campaigning for former President and Republican Presidential candidate Donald Trump. Tesla’s stock was on a more-or-less downw…